Comparison

Ruler vs Talking Scale

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Ruler

This app displays various measurement scales for length, including meters and inches. It allows users to set magnification ratios and reduced scales for different applications. Users can calibrate the ruler and adjust PPI settings for accurate measurements.

Highlights
  • Display various measurement scales
  • Set magnification ratios
  • Set reduced scales
  • Measure in meters and inches
  • Free mode for custom scales
  • Calibration for accuracy
  • PPI setting
Features
Read full description

Scale Ruler is the simple application to display the scale of various measurement units. ※ Warning: - The accuracy of the scales cannot be guaranteed. - Calibration and PPI values ​​will be reset when the model changes. - Set the PPI value only when the model is undecided. - When you change the PPI value, perform calibration after the change. ■How to use: ■Select mode In UNLOCKED state, after choosing measurement unit, magnification ratio and reduced scale, the scale is displayed. ■Free mode When dragging the screen at UNLOCK, you can set the scale in the range 1: 1 to 1: 100. When you press and hold the scale value, the keyboard is displayed and you can enter the scale. You can lock the scale on the ruler with a switch. Sorry for the advertisement during unlocking. After In-App Purchase, your ads will no longer be displayed. Specification of Scale Ruler - measure length meter,inches - magnification ratio 50% , 70.7% , 100% , 141% , 200% - reduced scale  for meter    1:100 , 1:150 , 1:200 , 1:250 , 1:300 , 1:400 , 1:500 , 1:600  for inch   1:1 , 1:1.5 , 1:2 , 1:2.5 , 1:3 , 1:4 , 1:5 , 1:6  for inch(Architectural)   1:1 , 1:2 , 1:4 , 1:8 , 1:12 , 1:16 , 1:24 , 1:32 , 1:48 , 1:64   1:96 , 1:128 , 1:192 , 1:384  for inch(Engineering) 1:120 , 1:240 , 1:360 , 1:480 , 1:600 , 1:720 1:800 , 1:960 , 1:1080 ■ Settings - Calibration - PPI (pixels per inch) setting - In-app purchase (ads not displayed) - In-app purchase restoration ■ Calibration Adjust the length of the ruler. Use the correct ruler for adjustment. "Calibration" button: Records the adjusted state and reflects the calibration result on the ruler. "Reset" button: Returns the adjustment status to the specified value. It will not be recorded. "Initialize" button: Returns the adjustment status to the specified value and reflects it on the ruler. * Caution: The calibration value will be reset when the model changes. ■ PPI (pixels per inch) setting If the model is undecided, check the PPI value of the model before setting the PPI value. * Please set only when the model is undecided. "OK" button: Record the entered PPI value and reflect it on the ruler display. "Initialize" button: Returns the PPI value to the specified value and reflects it on the ruler. * Caution: The PPI value will be reset when the model changes.

About

Talking Scale

Control your smart kitchen scale hands-free using voice commands and Siri Shortcuts. Adjust settings, zero the scale, and change units without touching the device. Ideal for busy cooks needing quick, precise measurements.

Highlights
  • Hands-free scale operation
  • Siri Shortcuts integration
  • Voice command control
  • Zero scale function
  • Unit conversion
Features
Read full description

Messy hands; no problem! Use the Smart Chef Scale with Siri Shortcuts. Now you can hear scale readings from the Smart Chef app and use Talking Scale Siri Shortcuts to set the scale to zero, change units and more. For a live demonstration, please search for the YouTube video: "Talking Kitchen Scale that works with Siri"

Screenshots

Ruler4 screens
Talking Scale1 screens

Verdict

The call

The clearest difference is rating: Ruler at 3.7 against Talking Scale's 2.7. Talking Scale's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Ruler sells 1 one-off in-app purchase. Talking Scale asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Ruler holds the better App Store score, 3.7 against 2.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

UpkeepUpdate frequency

Ruler ships an update every 5 months, Talking Scale weekly. The most recent releases landed on June 1, 2026 and September 13, 2026 respectively.

Scorecard6 real differences · 4 level
Ruler versus Talking Scale: the parameters behind the verdict, then further details
ParameterRulerTalking Scale
PriceFreeFree
Rating3.7 (3 ratings) — better2.7 (3 ratings)
Positive reviews63.0% of reviews—
Number of ratings33
Update frequencyEvery 5 monthsWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size4 MB22 MB
Age rating4+4+
Developermitsunori oishiReFleX Wireless Inc.

Customer experience

Ruler

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews27 reviews
Positive63.0%
Neutral3.7%
Negative33.3%

Talking Scale

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

1 purchases

Ruler

One-time1
  • Hide Ads$0.99
None

Talking Scale

No in-app purchases

Questions

Is Ruler free?
Ruler is free to download, with in-app purchases available.
Is Talking Scale free?
Talking Scale is free to download, with no in-app purchases.
Which has better reviews, Ruler or Talking Scale?
Ruler is rated higher. Ruler averages 3.7 out of 5 from 3 ratings, while Talking Scale averages 2.7 from 3 ratings.
Do Ruler or Talking Scale have ads?
Ruler shows ads; Talking Scale does not.
Which is updated more often, Ruler or Talking Scale?
Ruler ships an update every 5 months, and Talking Scale weekly. Most recently, Ruler was updated on June 1, 2026 and Talking Scale on September 13, 2026.

Other comparisons